title: Response to reply to the letter to the editor concerning "Gebauer et al.: Subdental synchondrosis and anatomy of the axis in aging: a histomorphometric study on 30 autopsy cases. Eur Spine J 15(3):292-298, 2006": The basis of the dens axis. Where is it located?
authors.forename: Xiao-ping
authors.initials: XP
authors.lastname: Wang
authors.forename: Zhi-cheng
authors.initials: ZC
authors.lastname: Deng
authors.forename: Zhen-jiao
authors.initials: ZJ
authors.lastname: Liang
authors.forename: Yu-min
authors.initials: YM
authors.lastname: Tu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D000886:Anthropometry / Q000379:methods; D001268:Atlanto-Axial Joint / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000254:growth & development; D001696:Biomechanical Phenomena; D002356:Cartilage / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000254:growth & development; D002648:Child; D006132:Growth Plate / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000254:growth & development; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009809:Odontoid Process / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000254:growth & development; D010012:Osteogenesis / Q000502:physiology*; D015203:Reproducibility of Results; D016103:Spinal Fractures / Q000473:pathology / Q000503:physiopathology; D013314:Stress, Mechanical; D014057:Tomography, X-Ray Computed / Q000379:methods / Q000592:standards; D016474:Weight-Bearing / Q000502:physiology; D055815:Young Adult